Systems and methods for locating one or more radio frequency identification tags are provided. 1-50 parts by weight of polyolefin resin as component, 10-150 parts by weight of glass fiber as component, 0-3 parts by weight of copper compound as component, and 0-5 parts by weight of silicone compound as component. A target material on the anode body is in a thin layer, which may be approximately 0.